Question: hows your timiing and tempo set up for this, do you use a metronome or is there any timing at all.

I tend to use a bit within tracks I have done in the past so that delay taps are in time, but I'm not sure it's necessary (where I could set tempo on devices instead). any tips?

I do not use a metronome ...
I generally record much in the manner of zen archery ;
there is quite a lot of contemplation , followed by sporadic periods of play ...
at a later time , I will examine the results , as MIDI data ,
and perform a varying amount of editing , perhaps some cut and paste ...
there is at least as much artifice as art ...
the resulting motif(s) are arranged , over time , and previewed in several settings ...

I use several delays ...
my main delay is augustus loop , by expert sleepers ...
I also use angstrolooper ...
I use , as well , a reaktor delay , of my own design ...

generally , I feed a channel through angstrolooper , or my delay ,
and send the result on to augustus loop ...
I tend to experiment w/ different delay offsets that may resync at odd points in the track ...